dataFunction not rendering graph with optional matches where relationships are null #379
Description
Expected Behavior (Mandatory)
Using dataFunction to render a graph with optional matches (i.e. where nodes may be null) should still render.
This does work when using cypher to generate a graph.
Actual Behavior (Mandatory)
Graphs fails to render.
With consoleDebug: true, the nodes with null never appear in the console log, whereas they do appear when using an initial cypher instead.
How to Reproduce the Problem
Use a datafunction that has an optional match that returns at least one node as null, and then attempt to render the graph.
Simple Example
Sample dataset
[
{
"keys": [
"u",
"k",
"u2"
],
"length": 3,
"_fields": [
{
"identity": {
"low": 9,
"high": 0
},
"labels": [
"User"
],
"properties": {
"name": "Eva Brown",
"id": "24e7bca8-c637-45d0-abc0-21885956bb06",
"department": "Sales",
"title": "Sales Representative",
"email": "eva.brown@acme.co"
},
"elementId": "4:e9e232fc-0370-45f3-bd2f-c086d1cdc93d:9"
},
{
"identity": {
"low": 12,
"high": 272105984
},
"start": {
"low": 12,
"high": 0
},
"end": {
"low": 9,
"high": 0
},
"type": "KNOWS",
"properties": {
"quality": {
"low": 3,
"high": 0
}
},
"elementId": "5:e9e232fc-0370-45f3-bd2f-c086d1cdc93d:1168686302325899276",
"startNodeElementId": "4:e9e232fc-0370-45f3-bd2f-c086d1cdc93d:12",
"endNodeElementId": "4:e9e232fc-0370-45f3-bd2f-c086d1cdc93d:9"
},
{
"identity": {
"low": 12,
"high": 0
},
"labels": [
"User"
],
"properties": {
"name": "Richard McGee",
"id": "e424e056-430e-42d4-8aa1-f7358f3b965e",
"department": "Operations",
"title": "Operations Manager",
"email": "richard.mcgee@acme.co"
},
"elementId": "4:e9e232fc-0370-45f3-bd2f-c086d1cdc93d:12"
}
],
"_fieldLookup": {
"u": 0,
"k": 1,
"u2": 2
}
},
{
"keys": [
"u",
"k",
"u2"
],
"length": 3,
"_fields": [
{
"identity": {
"low": 10,
"high": 0
},
"labels": [
"User"
],
"properties": {
"name": "Michael Davis",
"id": "ab8d3ef9-f66f-4fbe-a58e-a8c295bdeb8f",
"department": "Engineering",
"title": "Senior Software Engineer",
"email": "michael.davis@acme.co"
},
"elementId": "4:e9e232fc-0370-45f3-bd2f-c086d1cdc93d:10"
},
null,
null
],
"_fieldLookup": {
"u": 0,
"k": 1,
"u2": 2
}
}
]Specifications (Mandatory)
Currently used versions
Versions
- OS: Server: Ubuntu Server, Client: Windows 11
- Library: 2.1.0 and 2.1.1-alpha1
- Neo4j: 5.16-aura
I suspect it's a similar issue to the one mentioned here regarding NaN: #265